Analysis
- max time kernel
149s - max time network
131s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/08/2026, 14:19
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.exe
Resource
win11ltsc2024-20260709-en
General
- Target 2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.exe
- Size 486KB
- Sample260822-rmvv7azves
- SHA256 b1ada6d53a5e011d9b175b3aaf7aa0418f486931eeb1c65c42e30fe1b1794999
- MD5 5f68f1a19d2af7ec5d7ee1931fff1723
- SHA1 935e43f97733388be92f80f2e87b165a6e21ba72
- SHA512 08e334d9a9beec1709e711305161c5ef8604c4117d29306cdc6cc40df3fa3cce2e0df32fb51a999b275c5f13cd439a2d617b455ec9fad237e9f67b4f9eaf431c
- SSDEEP 6144:fpzhInoFPRsVmVE600C978/UDS0oU9woUfG3Ai1by+ekmVvPy2tVsGsHpeUka:frF2600C97ZHwM3AkW+pmBy0Vs3JeUka
- TLSH T167B4E0217686C032D6A212354AF5CBF21A3BBE669F6251C77B8437AD7F706D19A34303
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4432 D349.tmp - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language D349.tmp - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-189034102-168398478-1159367937-1000_Classes\Local Settings D349.tmp - Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 5992 WINWORD.EXE 5992 WINWORD.EXE - Suspicious behavior: RenamesItself 1 IoCs
pid Process 4432 D349.tmp - Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 5992 WINWORD.EXE 5992 WINWORD.EXE 5992 WINWORD.EXE 5992 WINWORD.EXE 5992 WINWORD.EXE - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 552 wrote to memory of 4432 552 2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.exe 89 PID 4432 wrote to memory of 5992 4432 D349.tmp 90 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:552 -
C:\Users\Admin\AppData\Local\Temp\D349.tmp"C:\Users\Admin\AppData\Local\Temp\D349.tmp" --helpC:\Users\Admin\AppData\Local\Temp\2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.exe E3EE282238EB0A707C23424157FBC8A5703A74B349D259194636E1F50E088F4A42F5BA3726B5DFE4ABE4A187E5C59157946114D12A42E29E308E58568A3949DA2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.docx" /o ""3⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:5992
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-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\2026-08-21_5f68f1a19d2af7ec5d7ee1931fff1723_elex_mafia_stealc_tofsee.docx
- Size 140KB
- SHA256 ca91bbd477e2a516997c48dde3da1a5eae4cad86ca664fea54f0103739073c94
- MD5 e90e498009a13ae957dcde4e01065e7d
- SHA1 dcb4cc9b7d1ed3becc625597422d60aaf068a759
- SHA512 4d0868f653e6c57d4011430ab81688f4f039550a9a0b5b1ce5ab1a695cb1dca7d7cdfb1d7c3920c35bbd3a8b441c820f00ae4e71f749650545ddd6894d597766
- SSDEEP 1536:0lllllllllllllllllllllllllllllollllllllllllllllllllllllllllllUlX:gh7z
- TLSH T15EE3B14F3FB19143FE9B6E7454E950163929BCE45901D207B8423ADA877B6BA4C30A2F
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\D349.tmp
- Size 486KB
- SHA256 565defda6a556974eed27e7f6c736faee7c44a3813223d69b667e2c7e46b4951
- MD5 636027dca37654bc77be9abd4b4eaf0a
- SHA1 144de3a9c32be3e6881a9bc405a0ba9f12377d10
- SHA512 30af2c879b2153ec7581751ac68011ec7be410c14656cd232f2c3df5719c70db299053f76d1463ffee6b7f7b96b6f0816ad6f3896a841660bdc87c7a0b0b9e05
- SSDEEP 12288:frF2600C97AObfP5t4XGXzOcCN47zvuBa6IlBJeUka:fro6s9FbH5nXzBHz6k3Mq
- TLSH T149B4E121BA85C032E2A2123546F5CBB21A3ABE755F6651C37B84376EBE706D1DB34307
- MD5 SHA1 SHA512 SSDEEP TLSH